1 /* $NetBSD: citrus_iconv_none.c,v 1.3 2011/05/23 14:45:44 joerg Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c)2003 Citrus Project,
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include <sys/cdefs.h>
32 #include <sys/queue.h>
33
34 #include <assert.h>
35 #include <errno.h>
36 #include <stdbool.h>
37 #include <stdlib.h>
38 #include <string.h>
39
40 #include "citrus_types.h"
41 #include "citrus_module.h"
42 #include "citrus_hash.h"
43 #include "citrus_iconv.h"
44 #include "citrus_iconv_none.h"
45
46 /* ---------------------------------------------------------------------- */
47
48 _CITRUS_ICONV_DECLS(iconv_none);
49 _CITRUS_ICONV_DEF_OPS(iconv_none);
50
51
52 /* ---------------------------------------------------------------------- */
53
54 int
_citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops * ops)55 _citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops *ops)
56 {
57
58 memcpy(ops, &_citrus_iconv_none_iconv_ops,
59 sizeof(_citrus_iconv_none_iconv_ops));
60
61 return (0);
62 }
63
64 static int
65 /*ARGSUSED*/
_citrus_iconv_none_iconv_init_shared(struct _citrus_iconv_shared * __restrict ci,const char * __restrict in __unused,const char * __restrict out __unused)66 _citrus_iconv_none_iconv_init_shared(
67 struct _citrus_iconv_shared * __restrict ci,
68 const char * __restrict in __unused, const char * __restrict out __unused)
69 {
70
71 ci->ci_closure = NULL;
72 return (0);
73 }
74
75 static void
76 /*ARGSUSED*/
_citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared * ci __unused)77 _citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared *ci __unused)
78 {
79
80 }
81
82 static int
83 /*ARGSUSED*/
_citrus_iconv_none_iconv_init_context(struct _citrus_iconv * cv)84 _citrus_iconv_none_iconv_init_context(struct _citrus_iconv *cv)
85 {
86
87 cv->cv_closure = NULL;
88 return (0);
89 }
90
91 static void
92 /*ARGSUSED*/
_citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv * cv __unused)93 _citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv *cv __unused)
94 {
95
96 }
97
98 static int
99 /*ARGSUSED*/
_citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci __unused,char * __restrict * __restrict in,size_t * __restrict inbytes,char * __restrict * __restrict out,size_t * __restrict outbytes,uint32_t flags __unused,size_t * __restrict invalids)100 _citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci __unused,
101 char * __restrict * __restrict in, size_t * __restrict inbytes,
102 char * __restrict * __restrict out, size_t * __restrict outbytes,
103 uint32_t flags __unused, size_t * __restrict invalids)
104 {
105 size_t len;
106 int e2big;
107
108 if ((in == NULL) || (out == NULL) || (inbytes == NULL))
109 return (0);
110 if ((*in == NULL) || (*out == NULL) || (*inbytes == 0) || (*outbytes == 0))
111 return (0);
112 len = *inbytes;
113 e2big = 0;
114 if (*outbytes<len) {
115 e2big = 1;
116 len = *outbytes;
117 }
118 memcpy(*out, *in, len);
119 in += len;
120 *inbytes -= len;
121 out += len;
122 *outbytes -= len;
123 *invalids = 0;
124 if (e2big)
125 return (E2BIG);
126
127 return (0);
128 }
129